svn merge -c 1406269 FIXES: YARN-202. Log Aggregation generates a storm of fsync() for namenode (Kihwal Lee via bobby)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1406270 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -182,6 +182,9 @@ Release 0.23.5 - UNRELEASED
     YARN-189. Fixed a deadlock between RM's ApplicationMasterService and the
     dispatcher. (Thomas Graves via vinodkv)
 
+    YARN-202. Log Aggregation generates a storm of fsync() for namenode 
+    (Kihwal Lee via bobby)
+
 Release 0.23.4 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/AggregatedLogFormat.java

@@ -263,7 +263,6 @@ public class AggregatedLogFormat {
       out = this.writer.prepareAppendValue(-1);
       logValue.write(out);
       out.close();
-      this.fsDataOStream.hflush();
     }
 
     public void closeWriter() {